The Moon is approaching a possibly habitable planet. Computer however, has no 
information on the planet, despite several hours of data gathering. The Alphans 
are brought down to the surface through the actions of the Guardian, a computer 
created by the Pirians to serve their every need. Everyone on Alpha, except 
Commander Koenig, thinks Piri is the ideal place for the Alphans to colonize; 
Koenig wants to know what happened to the Pirians.
The entire world of Piri is lifeless, and held in stasis by the Guardian. The 
only area not barren is the enclave created by the Guardian, which can be 
seen in the distance. 
An Eagle suspended over the Guardian. The Guardian's enclave is filled with 
the unusual structures seen -- white spheres on metallic stalks. The Alphan's 
initial survey showed these to be lifeless, and their function remained 
unknown.